Trelleborg’s Seal Materials Tested for Optimum Performance
The world leader in engineered polymer solutions, which has been making highly developed seals for over 30 years, worked with fluid producer MacDermid to test the effect of water glycol fluids (HFC) on common seal materials.
Together the engineers for both companies tested seven seal materials which were immersed in water glycol fluids at a range of elevated temperatures up to +200°C / +392°F.
ONS Conference white paper on results
The results have been published in a white paper on the subject which will be available to collect from Trelleborg’s stand in Hall 9 at the ONS Conference in Norway from August 29 to September 01.
Each seal and fluid combination was tested for hardness change, tensile strength change, strain change and volume change. All physical changes were documented using before and after photos.
Importance of fluid and material choices
David Brown, Global Lead Group Director, Oil & Gas, Trelleborg Sealing Solutions, says: “The testing reveals the importance of fluid type and seal material choice in ensuring optimum seal performance and service life. Traditional sealing materials, such as FKM, often inert in most fluids, are exhibiting disadvantageous behaviour in HFC fluids.
“Offshore operators are free to add extra additives to suit their particular application, but these could lead to seal material incompatibilities and cause dramatic adverse effects on sealing materials.
“We recommend each application must be reviewed uniquely to optimize the seal materials with the HFC fluid to ensure seal performance and life.”